HydroLAKES lake · #112616
Little Grassy Lake
Surface area
3,19km²
Avg depth
13,3m
Volume
42,3km³
Shoreline
20,5km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- WilliamsonIllinois · United States3.09 km²96.9% of lake
- JacksonIllinois · United States0.10 km²3.1% of lake
3 intersecting protected areas
Crab Orchard
IUCN IVNational Wildlife Refuge
3.19 km² overlap
Giant City
IUCN VState Park
0.04 km² overlap
National Wildlife Refuge
0.04 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
941 distinct species · 8 304 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Little Grassy Lake : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
3,19km²
Avg depth
13,3m
Volume
42,300km³
Watershed
43km²
Shoreline
20,5km
Shore dev. idx
3,23
Residence time
917days
Elevation
157m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.